public class Animal {
     String name;
     int age;
    public Animal(String name, int age) {
        this.name = name;
        this.age = age;
    }

    public void eat() {
        System.out.println("吃");
    }
}

class Cat extends Animal{
    public Cat(String name, int age) {
        super(name, age);
    }
    @Override
    public void eat() {
        System.out.println(name + "吃鱼");
    }

    public void mew() {
        System.out.println("喵喵叫");
    }
}

class Dog extends Animal{
    public Dog(String name, int age) {
        super(name, age);
    }
    @Override
    public void eat() {
        System.out.println(name + "吃骨头");
    }

    public void bark() {
        System.out.println("汪汪叫");
    }
}
